Crastin® SK643FR NC010
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Common features of Crastin® thermoplastic polyester resin include mechanical and physical properties such as stiffness and toughness, heat resistance, friction and wear resistance, excellent surface finishes and good colourability. Crastin® thermoplastic polyester resin has excellent electrical insulation characteristics and high arc-resistant grades are available. Many flame retardant grades have UL recognition (class V-0). Crastin® thermoplastic polyester resin typically has high chemical and heat ageing resistance. The good melt stability of Crastin® thermoplastic polyester resin normally enables the recycling of properly handled production waste. If recycling is not possible, DuPont recommends, as the preferred option, incineration with energy recovery (-24 kJ/g of base polymer) in appropriately equipped installations. For disposal, local regulations have to be observed. Crastin® thermoplastic polyester resin typically is used in demanding applications in the electronics, electrical, automotive, mechanical engineering, chemical, domestic appliances and sporting goods industry. Crastin® SK643FR is a flame retardant, 20% glass-reinforced polybutylene terephthalate molding resin. It is recognized as UL94V-0 at 0.8mm.
Polymer Name: Polybutylene Terephthalate Alloy (PBT Alloy)
Processing Methods: Injection Molding
Additives Included: Flame Retardant
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Crastin® SK643FR NC010 Features & Benefits
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Plastics & Elastomers Processing Methods
Properties
Chemical Resistance
Flame Rating
Flame Rating
Part Marking Code
Resin ID
Physical Properties
| Value | Units | Test Method / Conditions | |
| Moulding Shrinkage - Normal | 1.2 | % | ISO 294-4, 2577 |
| Moulding Shrinkage - Parallel | 0.5 | % | ISO 294-4, 2577 |
| Post Moulding Shrinkage - Normal (48H at 80°C) | 0.3 | % | ISO 294-4 |
| Melt Volume-Flow Rate - MVFR (250°C/2.16 kg) | 6.0 | cm³/10min | ISO 1133 |
| Melt Mass Flow Rate - MFR (250°C/2.16 kg) | 9.0 | g/10min | ISO 1133 |
| Viscosity Number | 100.0 | cm³/g | ISO 307, 1157, 1628 |
| Moulding Shrinkage - Parallel (Annealed) | 0.6 | % | ISO 294-4 |
| Moulding Shrinkage - Normal (Annealed) | 1.45 | % | ISO 294-4 |
| Post Moulding Shrinkage - Parallel (48H at 80°C) | 0.1 | % | ISO 294-4 |
Mechanical Properties
| Value | Units | Test Method / Conditions | |
| Poisson's Ratio | 0.34 | - | - |
| Tensile Modulus | 8500.0 | MPa | ISO 527-1/-2 |
| Stress at Break | 113.0 | MPa | ISO 527-1/-2 |
| Strain at Break | 3.0 | % | ISO 527-1/-2 |
| Flexural Strength | 170.0 | MPa | ISO 178 |
| Tensile Creep Modulus (1h) | 7200.0 | MPa | ISO 899-1 |
| Tensile Creep Modulus (1000h) | 5500.0 | MPa | ISO 899-1 |
| Charpy Impact Strength (23°C) | 55.0 | kJ/m² | ISO 179/1eU |
| Charpy Impact Strength (-30°C) | 53.0 | kJ/m² | ISO 179/1eU |
| Charpy Notched Impact Strength (23°C) | 8.5 | kJ/m² | ISO 179/1eA |
| Charpy Notched Impact Strength (-30°C) | 7.8 | kJ/m² | ISO 179/1eA |
| Izod Notched Impact Strength (23°C) | 8.0 | kJ/m² | ISO 180/1A |
| Izod Notched Impact Strength (-30°C) | 7.0 | kJ/m² | ISO 180/1A |
| Izod Impact Strength (23°C) | 36.0 | kJ/m² | ISO 180/1U |
| Izod Impact Strength (-30°C) | 35.0 | kJ/m² | ISO 180/1U |
Thermal Properties
| Value | Units | Test Method / Conditions | |
| Relative Temperature Index - Strength (0.75 mm) | 140.0 | °C | UL 746B |
| Relative Temperature Index - Strength (1.5 mm) | 140.0 | °C | UL 746B |
| Relative Temperature Index - Strength (3 mm) | 140.0 | °C | UL 746B |
| Temperature of Deflection Under Load (1.8 Mpa) | 205.0 | °C | ISO 75-1/-2 |
| Relative Temperature Index - Electrical (0.75 mm) | 140.0 | °C | UL 746B |
| Relative Temperature Index - Electrical (1.5 mm) | 140.0 | °C | UL 746B |
| Relative Temperature Index - Electrical (3 mm) | 140.0 | °C | UL 746B |
| Relative Temperature Index - Electrical (6 mm) | 140.0 | °C | UL 746B |
| Relative Temperature Index - Impact (0.75 mm) | 130.0 | °C | UL 746B |
| Relative Temperature Index - Impact (1.5 mm) | 130.0 | °C | UL 746B |
| Relative Temperature Index - Impact (3 mm) | 130.0 | °C | UL 746B |
| Relative Temperature Index - Impact (6 mm) | 130.0 | °C | UL 746B |
| Relative Temperature Index - Strength (6 mm) | 140.0 | °C | UL 746B |
| Melting Temperature (10°C/Min) | 224.0 | °C | ISO 11357-1/-3 |
| Temperature of Deflection Under Load (0.45 Mpa) | 220.0 | °C | ISO 75-1/-2 |
| Coefficient of Linear Thermal Expanison - Parallel | 40.0 | E-6/K | ISO 11359-1/-2 |
| Coefficient of Linear Thermal Expansion - Normal | 100.0 | E-6/K | ISO 11359-1/-2 |
Electrical Properties
| Value | Units | Test Method / Conditions | |
| Surface Resistivity | 1E15 | ohm | IEC 62631-3-2 |
| Dissipation Factor (100 Hz) | 30.0 | E-4 | IEC 62631-2-1 |
| Comparative Tracking Index - CTI | 250.0 | - | IEC 60112 |
| Dissipation Factor (1 MHz) | 160.0 | E-4 | IEC 62631-2-1 |
| Electric Strength | 28.0 | kV/mm | IEC 60243-1 |
| Electric Strength - Short Time (2 mm) | 17.0 | kV/mm | IEC 60243-1 |
| Relative Permittivity (1 MHz) | 3.7 | - | IEC 62631-2-1 |
| Relative Permittivity (100 Hz) | 3.8 | - | IEC 62631-2-1 |
| Volume Resistivity | 1E15 | ohm.m | IEC 62631-3-1 |
Flammability
| Value | Units | Test Method / Conditions | |
| Thickness Tested | 1.5 | mm | IEC 60695-11-10 |
| Burning Behaviour (Thickness h) | V-0 | class | IEC 60695-11-10 |
| Burning Behaviour (1.5 mm, Nominal Thickness) | V-0 | class | IEC 60695-11-10 |
| Thickness Tested | 0.75 | mm | IEC 60695-11-10 |
| Ul Recognition | Yes | - | UL 94 |
| Glow Wire Flammability Index - GWFI (3 mm) | 960.0 | °C | IEC 60695-2-12 |
| Oxygen Index | 31.0 | % | ISO 4589-1/-2 |
| FMVSS Class | DNI | - | ISO 3795 (FMVSS 302) |
Other Properties
| Value | Units | Test Method / Conditions | |
| Humidity Absorption (2 mm) | 0.15 | % | Sim. to ISO 62 |
| Water Absorption (2 mm) | 0.3 | % | Sim. to ISO 62 |
| Density | 1630.0 | kg/m³ | ISO 1183 |
Processing Information (Injection Molding)
| Value | Units | Test Method / Conditions | |
| Ejection Temperature | 170.0 | °C | - |
| Max. Mould Temperature | 130.0 | °C | - |
| Min. Mould Temperature | 30.0 | °C | - |
| Mold Temperature Optimum | 80.0 | °C | - |
| Max. Melt Temperature | 260.0 | °C | - |
| Min. Melt Temperature | 240.0 | °C | - |
| Melt Temperature Optimum | 250.0 | °C | - |
| Drying Temperature | 120.0 | °C | - |
| Drying Recommended | Yes | - | - |
| Drying Time (Dehumidified Dryer) | 2 .0 - 4 | h | - |
| Processing Moisture Content | ≤ 0.04 | % | - |
| Hold Pressure Range | ≥ 60 | MPa | - |
| Back Pressure | As low as possible | MPa | - |
| Hold Pressure Time | 3.0 | s/mm | - |
Chemical Resistance
| Chemical Type | Chemical Name | Resistance |
| Acids | Acetic Acid (5% by mass) (23°C) | Probably Resistant |
| Acids | Chromic Acid solution (40% by mass) (23°C) | Not Recommended |
| Acids | Citric Acid solution (10% by mass) (23°C) | Probably Resistant |
| Acids | Hydrochloric Acid (36% by mass) (23°C) | Not Recommended |
| Acids | Lactic Acid (10% by mass) (23°C) | Probably Resistant |
| Acids | Nitric Acid (40% by mass) (23°C) | Not Recommended |
| Acids | Sulfuric Acid (38% by mass) (23°C) | Not Recommended |
| Acids | Sulfuric Acid (5% by mass) (23°C) | Not Recommended |
| Alcohols | Ethanol (23°C) | Probably Resistant |
| Alcohols | Isopropyl alcohol (23°C) | Probably Resistant |
| Alcohols | Methanol (23°C) | Probably Resistant |
| Bases | Ammonium Hydroxide solution (10% by mass) (23°C) | Probably Resistant |
| Bases | Sodium Hydroxide solution (1% by mass) (23°C) | Probably Resistant |
| Bases | Sodium Hydroxide solution (35% by mass) (23°C) | Not Recommended |
| Ethers | Diethyl ether (23°C) | Probably Resistant |
| Hydrocarbons | Toluene (23°C) | Probably Resistant |
| Hydrocarbons | iso-Octane (23°C) | Probably Resistant |
| Hydrocarbons | n-Hexane (23°C) | Probably Resistant |
| Ketones | Acetone (23°C) | Probably Resistant |
| Mineral oils | Insulating Oil (23°C) | Probably Resistant |
| Mineral oils | SAE 10W40 multigrade motor oil (23°C) | Probably Resistant |
| Mineral oils | SAE 10W40 multigrade motor oil, 130°C | Not Recommended |
| Mineral oils | SAE 80/90 hypoid-gear oil, 130°C | Not Recommended |
| Other | 1% nonylphenoxy-polyethyleneoxy ethanol in water (23°C) | Probably Resistant |
| Other | 50% Oleic acid + 50% Olive Oil (23°C) | Probably Resistant |
| Other | DOT No. 4 Brake fluid (130°C) | Not Recommended |
| Other | Ethyl Acetate (23°C) | Probably Resistant |
| Other | Ethylene Glycol (50% by mass in water)(108°C) | Not Recommended |
| Other | Hydrogen peroxide (23°C) | Not Recommended |
| Other | Phenol solution (5% by mass) (23°C) | Probably Resistant |
| Other | Water (23°C) | Probably Resistant |
| Other | Water (90°C) | Not Recommended |
| Salt solutions | Sodium Carbonate solution (2% by mass) (23°C) | Probably Resistant |
| Salt solutions | Sodium Carbonate solution (20% by mass) (23°C) | Probably Resistant |
| Salt solutions | Sodium Chloride solution (10% by mass) (23°C) | Probably Resistant |
| Salt solutions | Sodium Hypochlorite solution (10% by mass) (23°C) | Probably Resistant |
| Salt solutions | Zinc Chloride solution (50% by mass) (23°C) | Probably Resistant |
| Standard Fuels | Diesel fuel (pref. ISO 1817 Liquid F) (90°C) | Probably Resistant |
| Standard Fuels | Diesel fuel (pref. ISO 1817 Liquid F) (>90°C) | Not Recommended |
| Standard Fuels | Diesel fuel (pref. ISO 1817 Liquid F)( 23°C) | Probably Resistant |
| Standard Fuels | ISO 1817 Liquid 1 - E5 (60°C) | Not Recommended |
| Standard Fuels | ISO 1817 Liquid 2 - M15E4 (60°C) | Not Recommended |
| Standard Fuels | ISO 1817 Liquid 3 - M3E7 (60°C) | Not Recommended |
| Standard Fuels | ISO 1817 Liquid 4 - M15 (60°C) | Not Recommended |
| Standard Fuels | Standard fuel with alcohol (pref. ISO 1817 Liquid 4) (23°C) | Probably Resistant |
| Standard Fuels | Standard fuel without alcohol (pref. ISO 1817 Liquid C) (23°C) | Probably Resistant |
Regulatory & Compliance
Certifications & Compliance
Compliance
Technical Details & Test Data
Coeff. of Linear Thermal Expansion
LTHA-Stress At Break (3 Mm)
Secant Modulus-Strain
Stress-Strain
Crastin® SK643FR NC010
DuPont